Schwinge and Abley have put together quite a cast in a book that squares up to mainstream thought regarding the environment and our presence on it. Schwinge's mile high tower complex for the Thames estuary seems pure science fiction fantasy - a million miles from what is considered the norm today. Yet the technology to achieve engineering on this scale is not really that far away and would be further developed as the work progressed. After all, we have gone through Machu Piccu, London Underground and Hoover Dam etc. only to reach a point where humanity runs the risk of losing our nerve as official ideology says 'cool it.'
If we look at the achievements of master builders and engineers of the past; the feats accomplished with what is now basic technology, old materials and method and consider our capabilities today then a modern-day Brunel might be devising bounding over the English channel with a multi linked 'land' bridge - terra forming and engineered ports, multi laned highways and proposed link to a 25,000 mile circumglobal maglev. All this do-able but distinctly unpopular in the west.
In the west we risk losing our head up our arse by accepting human failure, admitting frailty and the doomsday scenario; tread lightly, build small and stay put.
We can herald in a greater future for the next generations rather than living in an era that accepts spurious limits and a subhuman environmentalist legacy.
If we developed a keener sense of humanhood and progress and applied some of the endeavour that goes into destructive capacity to constructive use then there would be no limits to what could be achieved.